'Other users of the park have as much right to be there as you'
Also it's only parkrun not a race ;)
Taking life too seriously I guess, we were all yelled at for being "rude children"... They weren't paying much attention as we came towards them (facing our way), so I'm not sure what they thought of the other hundred or so people...
Hang on, so you mean you can't win training?! That's my main source of victories.
I was once told by walkers during a fell race that 'this is a footpath'.
SO I pointed out that we were indeed on foot. A shame I didn't have enough time to tell them that they had as much right to be there as us (ironically this was very close to the site of the '32 trespass which opened the fells up to everyone).